C#中获取进程的用户名

一、新创建一个C#窗体应用程序

 

二、首先需要在引用中添加对 System.Management.dll 的引用

 

三、在窗体中添加一个文本框和一个按钮，如下图所示：

 

四、添加后台代码，如下：

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Diagnostics;
using System.Management;

namespace 获取进程的用户名
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        /// <summary>
        /// 通过进程Id来获取进程的用户名
        /// </summary>
        /// <param name="processId">进程Id</param>
        /// <returns></returns>
        private static string GetProcessUserName(int processId)
        {
            string name = "";

            SelectQuery query = new SelectQuery("select * from Win32_Process where processID=" + processId);
            ManagementObjectSearcher searcher = new ManagementObjectSearcher(query);
            try
            {
                foreach (ManagementObject disk in searcher.Get())
                {
                    ManagementBaseObject inPar = null;
                    ManagementBaseObject outPar = null;

                    inPar = disk.GetMethodParameters("GetOwner");

                    outPar = disk.InvokeMethod("GetOwner", inPar, null);

                    name = outPar["User"].ToString();
                    break;
                }
            }
            catch
            {
                name = "SYSTEM";
            }

            return name;
        }

        private void button1_Click(object sender, EventArgs e)
        {
            string pName = textBox1.Text;

            Process[] ps = Process.GetProcessesByName(pName);

            foreach (Process p in ps)
            {
                //弹出进程名和进程的用户名
                MessageBox.Show(p.ProcessName + "||" + GetProcessUserName(p.Id));
            }
        }
    }
}

 

五、这样就能够得到要查询的进程的用户名了！！